US6027504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device and method for producing osteotomies
Assignee: Individual
•
Filing: 1997-12-05
•
Granted: 2000-02-22
•
Expires: 2017-12-05
Abstract
Abstract Devices and methods for producing minimally invasive osteotomies to correct angular deformities of bones in and about the knee are disclosed. The method includes locating a plane in which the angle exhibited by the deformity is situated. An oblique cut is then made along a surface of the bone, such that the cut is transverse to the plane in which the angle is situated. Thereafter, the bone pieces are rotated about the cut relative to one another until a desired alignment between the bone pieces is achieved. To maintain the bone pieces in alignment, a device having an elongated body for extending into a tunnel between the bone pieces is provided. The device also includes a rigid member fixedly positioned at one end of the body. The rigid member is transverse to the body to engage one bone piece. The device further includes a locking mechanism at an opposite end of the body to engage the other bone piece. The device permits the bone pieces to be pulled against one another between the rigid member and the locking mechanism.
Inventors
- 👤 David A. McGuire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:41
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/14; A61B17/15; A61B17/151; A61B17/02; A61B17/0206; A61B17/16; A61B17/17; A61B17/171; A61B17/56; A61B17/58; A61B17/60; A61B17/66; A61B17/68; A61B17/683; A61B17/88; A61B17/8875; A61B17/8886; A61B17/8891; Y; Y10; Y10S; Y10S606/00; Y10S606/907; Y10S606/916
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
129 words
A method for producing osteotomy in a bone having a width and an angle of deformity, the method comprising the steps of: (a) drilling a tunnel through a surface of the bone, such that the tunnel is transverse to a plane in which the angle of deformity is situated; (b) making an oblique cut partially across the bone, such that the cut is transverse to the plane in which the angle of deformity is situated and at an angle to the tunnel; (c) securing the bone about the cut; (d) completing the oblique cut across the bone to form two bone pieces, each including a portion of the tunnel; and (e) rotating the bone pieces about the tunnel and relative to one another until a desired alignment is achieved.
Claim 2
Independent Claim
129 words
A method for producing osteotomy in a bone having a width and an angle of deformity, the method comprising the steps of: (a) drilling a tunnel through a surface of the bone, such that the tunnel is transverse to a plane in which the angle of deformity is situated; (b) making an oblique cut partially across the bone, such that the cut is transverse to the plane in which the angle of deformity is situated and at an angle to the tunnel; (c) securing the bone about the cut; (d) completing the oblique cut across the bone to form two bone pieces, each including a portion of the tunnel; and (e) rotating the bone pieces about the tunnel and relative to one another until a desired alignment is achieved.
Claim 3
Dependent Claim
31 words
A method according to claim 1, wherein the step of securing in step (c) includes placing a device through the tunnel so as to subsequently maintain the bone pieces in approximation.
Claim 4
Dependent Claim
44 words
A method according to claim 2 further comprising: (f) tightening the device, such that the bone pieces are pulled against one another at the cut in a direction transverse to the cut, so that the bone pieces may remain in close approximation and alignment.
Claim 5
Dependent Claim
36 words
A method according to claim 1, wherein the step of securing in step (c) includes affixing a supporting framework to the bone so as to maintain the bone pieces in position after completing the oblique cut.
Claim 6
Independent Claim
156 words
A method for producing osteotomy in a bone having a width and an angle of deformity, the method comprising the steps of: (a) providing a pivotable support structure to support the bone in position; (b) positioning the support structure along a surface of the bone parallel to a plane in which the angle of deformity is situated; (c) drilling a tunnel through the bone from the surface along which the structure is positioned, so that the tunnel is through to the plane in which the angle of deformity is situated; (d) forming a oblique cut partially across the bone, so as to intersect the tunnel at an angle; (e) positioning a bone anchor through the tunnel; (f) completing the oblique cut across the bone so that two bone pieces are formed; and (g) pivoting one bone piece about the bone anchor relative to the other bone piece until a desired alignment between the pieces is achieved.
Claim 7
Independent Claim
156 words
A method for producing osteotomy in a bone having a width and an angle of deformity, the method comprising the steps of: (a) providing a pivotable support structure to support the bone in position; (b) positioning the support structure along a surface of the bone parallel to a plane in which the angle of deformity is situated; (c) drilling a tunnel through the bone from the surface along which the structure is positioned, so that the tunnel is through to the plane in which the angle of deformity is situated; (d) forming a oblique cut partially across the bone, so as to intersect the tunnel at an angle; (e) positioning a bone anchor through the tunnel; (f) completing the oblique cut across the bone so that two bone pieces are formed; and (g) pivoting one bone piece about the bone anchor relative to the other bone piece until a desired alignment between the pieces is achieved.
Claim 8
Dependent Claim
31 words
A method according to claim 5, wherein in the step of drilling in step (c) further includes drilling through a goniometer attached to the support structure adjacent the angle of deformity.
Claim 9
Dependent Claim
35 words
A method according to claim 5, wherein the oblique cut in the step of forming in step (d) is formed about two third to three quarter of the way across the width of the bone.
Claim 10
Dependent Claim
20 words
A method according to claim 5, wherein the step of pivoting in step (g) further includes pivoting the support structure.
Claim 11
Dependent Claim
23 words
A method according to claim 5, wherein the desired alignment in the step of pivoting in step (g) is measured by a goniometer.
Claim 12
Dependent Claim
41 words
A method according to claim 5 further comprising: (h) securing the bone anchor within the tunnel so as to pull the bone pieces together at the cut to maintain the pieces in approximation; and (i) removing the support from the bone.
Claim 13
Dependent Claim
85 words
A method according to claim 5, wherein the bone anchor positioned through the tunnel in the step of positioning includes: an elongated body having a distal end and a proximal end; a rigid member fixedly positioned at the distal end transverse to the body to engage one bone piece; and a locking mechanism at the proximal end of the body to engage the other bone piece, such that the bone pieces may be pulled against one another between the rigid member and the locking mechanism.
Claim 14
Dependent Claim
35 words
A method according to claim 11, wherein the oblique cut in the step of forming in step (d) is formed about two third to three quarter of the way across the width of the bone.
Claim 15
Dependent Claim
72 words
A method according to claim 5, wherein the bone anchor positioned through the tunnel in the step of positioning includes: an anchoring member for engaging against one bone piece; a cannulated extension perpendicularly fixed at one end to the member for extending into a tunnel between the bone pieces; and a securing member for engaging an end of the extension opposite the anchoring member to secure the bone pieces against one another.
Claim 16
Independent Claim
169 words
A method for relieving contact pressure between a first bone having an angle of deformity and a second bone, the method comprising the steps of: (a) drilling a tunnel through a surface of the first bone, such that the tunnel is transverse to a plane in which the angle is situated; (b) making an oblique cut partially across the first bone on a surface parallel to the tunnel, the cut being at an angle to the tunnel to permit the first bone, when realigned, to reduce the contact pressure between the first bone and the second bone; (c) securing the bone about the oblique cut; (d) determining the amount angular correction needed, so as to bring the contact pressure within a physiologic tolerance; (e) completing the oblique cut across the bone to form two bone pieces, each including a piece of the tunnel; and (f) rotating the bone pieces about the tunnel and relative to one another until a an alignment conforming to the determined angular correction is achieved.
Claim 17
Independent Claim
169 words
A method for relieving contact pressure between a first bone having an angle of deformity and a second bone, the method comprising the steps of: (a) drilling a tunnel through a surface of the first bone, such that the tunnel is transverse to a plane in which the angle is situated; (b) making an oblique cut partially across the first bone on a surface parallel to the tunnel, the cut being at an angle to the tunnel to permit the first bone, when realigned, to reduce the contact pressure between the first bone and the second bone; (c) securing the bone about the oblique cut; (d) determining the amount angular correction needed, so as to bring the contact pressure within a physiologic tolerance; (e) completing the oblique cut across the bone to form two bone pieces, each including a piece of the tunnel; and (f) rotating the bone pieces about the tunnel and relative to one another until a an alignment conforming to the determined angular correction is achieved.
Claim 18
Dependent Claim
23 words
A method according to claim 14, wherein oblique cut in step (b) is formed so that it intersects the tunnel at an angle.
Claim 19
Dependent Claim
22 words
A method according to claim 14, wherein the step of securing in step (c) includes affixing a supporting framework to the bone.
Claim 20
Dependent Claim
31 words
A method according to claim 14, wherein the step of securing in step (c) includes placing a device through the tunnel so as to subsequently maintain the bone pieces in approximation.
Claim 21
Dependent Claim
44 words
A method according to claim 17 further comprising: (g) tightening the device, such that the bone pieces are pulled against one another at the cut in a direction transverse to the cut, so that the bone pieces may remain in close approximation and alignment.
Claim 22
Dependent Claim
87 words
A method according to claim 17, wherein the device placed through the tunnel in the step of securing in step (c) includes: an elongated body having a distal end and a proximal end; a rigid member fixedly positioned at the distal end transverse to the body to engage one bone piece; and a locking mechanism at the proximal end of the body to engage the other bone piece, such that the bone pieces may be pulled against one another between the rigid member and the locking mechanism.
Claim 23
Dependent Claim
33 words
A method according to claim 19, wherein the step of determining in step (d) includes placing a pressure transducer between the first and second bones so as to measure the contact pressure therebetween.
Claim 24
Dependent Claim
33 words
A method according to claim 14, wherein the step of determining in step (d) includes placing a pressure transducer between the first and second bones so as to measure the contact pressure therebetween.
References Cited (Backward Citations)
US624969A
Cited
US1269912A
Cited
US2077804A
Cited
US2511051A
Cited
US2685877A
Cited
US3716051A
Cited
US4409973A
Cited
US4398855A
Cited
US4519100A
Cited
FR2567016A1
Cited
US4632101A
Cited
US4721103A
Cited
US4862883A
Cited
US5098433A
Cited
US5413579A
Cited
US5584836A
Cited
US5613969A
Cited
US5722978A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-02-21 | 2003-08-23 | 2004-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-02-21 | 2007-08-23 | 2008-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-02-21 | 2011-08-23 | 2012-02-22 | $7700.00 | Window Closed / Lapsed |